html{
    font-size: 62.5%;
}
.box-top{
    height: 6rem;
    background-color: #fa3c3e;
}
.box-top .header{
    position: relative;
    width: 120rem;
    margin: auto;
}
.box-top .header .logo{
    font-size: 3rem;
    margin-left: 1rem;
    font-weight: 600;
    line-height: 6rem;
    display: inline-block;
}
.box-top .header ul{
    display: inline-block;
    line-height: 6rem;
    vertical-align: top;
    margin-left: 5rem;
    font-size: 1.6rem;
}
.box-top .header ul li{
    display: inline-block;
    cursor: pointer;
}
.box-top .header ul li + li{
    margin-left: 3rem;
}
.box-top .header .btn{
    display: none;
    position: absolute;
    top: 1rem;
    right: 2rem;
    width: 4rem;
    height: 4rem;
    line-height: 4rem;
    text-align: center;
    font-size: 1.6rem;
    background-color:pink;
    border-radius: 0.3rem;
    cursor: pointer;
}

/*banner*/
.banner{
    height: 50rem;
    background: url("../images/bg.jpg") no-repeat center;
}
.banner .banner-mk{
    width: 100%;
    height: 100%;
    background-color:rgba(255,255,255,.6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}
.banner .banner-mk .headImg{
    width: 8rem;
    height: 8rem;
    margin-bottom: 1rem;
    border-radius: 50%;
    overflow: hidden;
}
.banner .banner-mk .headImg img{
    width: 100%;
    height: 100%;
}
.banner .banner-mk .name{
    font-size: 1.8rem;
}

.main{
    width: 120rem;
    margin: auto;
    font-size: 0;
}
.main ul{
    margin-left: 1rem;
}
.main ul li{
    width: calc(25% - 2rem);
    display: inline-block;
    font-size: 1.6rem;
    /*padding: 0 2rem;*/
    margin-top:2rem;
    box-sizing: border-box;
}
.main ul li + li{
    margin-left: 2rem;
}
.main ul li:nth-child(4n+1){
    margin-left: 0;
}
.main ul li img{
    width: 100%;
}
